Revisiting the OZI-forbidden Radiative Decays of Orthoquarkonia

Abstract

It is interesting to investigate the OZI-forbidden radiative orthoquarkonium decays $J/\psi \to \gamma {\pi }^0,\gamma \eta$ and $\gamma {\eta }^{\prime }$ in perturbative QCD. In this work without the approximations adopted in literature we carry out a full one-loop calculation which involves integrations of 4-point and 5-point loop functions. Our numerical results are in agreement with the present data. We also briefly discuss the decays of $J/\psi \to \gamma +{\rho }^0$, as well as ${\rm Y}\to {\pi }^0\gamma ,\eta \gamma ,{\eta }^{\prime }\gamma$.

18pages,2figures;final version to appear in Nucl.Phys. B

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• J/psi couplings to charmed resonances and to pi
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Cited by in corpus (10)

• Hunting eta_b through radiative decay into J/psi
• Charm Physics - A Field Full with Challenges and Opportunities
• Revisiting the radiative decays $J/\psi \to \gamma {\eta }^{(\prime )}$ in perturbative QCD
• Revisiting the $P$-wave charmonium radiative decays $h_c\to \gamma {\eta }^{(\prime )}$ with relativistic corrections
• Search for charged lepton flavor violation of vector mesons in BLMSSM model
• Comprehensive Calculations on the OZI-forbidden Nonleptonic Decays of Orthoquarkonia $J/\psi ({\rm Y})\to \pi \pi ,\rho \pi$
• Radiative decays of $h_c$ to the light mesons ${\eta }^{(\prime )}$: A perturbative QCD calculation
• QCD analysis of electromagnetic Dalitz decays $J/\psi \to {\eta }^{(\prime )}{\ell }^{+}{\ell }^{-}$
• Constraining parameter space of the Little Higgs model by data of tera-Z factory and ILC
• The annihilation decays $B_c^{-}\to {\eta }^{{}^{\prime }}(\eta ,{\pi }^0)l^{-}\bar{\nu }$